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LeetCode

一个记录刷题的文档。 此文档会记录下所有刷过的题目, 以及一些笔记。

共勉。

Java:

# Title Level Language Tags Notes
1 Two Sum.java Easy Java Array
2 Add Two Numbers.java Medium Java ListNode
3 Longest Substring Without Repeating Characters.java Medium Java
4 Median of Two Sorted Arrays.java Hard Java Array Combine Combine Sort
7 Reverse Integer.java Easy Java
9 Palindrome Number.java Easy Java include python
11 Container With Most Water.java Medium Java Double Pointer
13 Roman to Integer.java Easy Java Map
17 Roman to Integer.java Easy Java Map
15 3Sum.java Medium Java
20 Valid Parentheses.java Easy Java HashMap, Stack
21 Merge Two Sorted Lists.java Easy Java ListNode
26 Remove Duplicates from Sorted Array.java Easy Java Array
27 Remove Element Easy Java Array
28 Implement strStr().java Easy Java SubString interesting solution
35 Search Insert Position.java Easy Java Array
53 Maximum Subarray.java Easy Java Contiguous Subarray
58 Length of Last Word.java Easy Java String, Array
67 Add Binary.java Easy Java
70 Climbing Stairs.java Easy Java Dynamic Programmig Dynamic Programmig
88 Merge Sorted Array.java Easy Java Array include js
94 Binary Tree Inorder Traversal.java Easy Java TreeNode Iteration & Recursion
100 Same Tree.java Easy Java TreeNode Recursion
101 Symmetric Tree.java.java Easy Java TreeNode Recursion
102 Binary Tree Level Order Traversal.java Medium Java TreeNode
104 Maximum Depth of Binary Tree.java Easy Java TreeNode DFS
110 Balanced Binary Tree.java Easy Java TreeNode Recursion
111 Minimum Depth of Binary Tree.java Easy Java TreeNode BFS
144 Binary Tree Preorder Traversal.java Easy Java TreeNode Iteration & Recursion
145 Binary Tree Postorder Traversal.java Easy Java TreeNode Iteration & Recursion
154 Find Minimum in Rotated Sorted Array II.java Hard Java
167 Two Sum II.java Easy Java Array
206 Reverse Linked List.java Easy Java List
222 Count Complete Tree Nodes.java Medium Java TreeNode Complete Binary Tree
226 Invert Binary Tree.java Easy Java TreeNode Recursion
257 Binary Tree Paths.java Easy Java TreeNode Recursion
509 Fibonacci Number.java Easy Java Recursion
1114 Print in Order.java Easy Java Thread

SQL:

# Title Level Language Tags Notes
175 Combine Two Tables.sql Easy MySQL LEFT JOIN
181 Employees Earning More Than Their Managers.sql Easy MySQL Search
197 Rising Temperature.sql Easy MySQL Join DATEDIFF()
570 Managers with at Least 5 Direct Reports.sql Medium MySQL Join
577 Employee Bonus.sql Easy MySQL Join
584 Find Customer Referee.sql Easy MySQL Search IS NULL
595 Big Countries.sql Easy MySQL Search
1068 Product Sales Analysis I.sql Easy MySQL Join
1148 Article Views I.sql Easy MySQL Search
1280 Students and Examinations.sql Easy MySQL Join
1378 Replace Employee ID With The Unique Identifier.sql Easy MySQL Join
1581 Customer Who Visited but Did Not Make Any Transactions.sql Easy MySQL Join
1661 Average Time of Process per Machine.sql Easy MySQL Join
1683 Invalid Tweets.sql Easy MySQL Search length()
1934 Confirmation Rate.sql Medium MySQL Join
1757 Recyclable and Low Fat Products.sql Easy MySQL

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